/* ============================================
   FAMILY CALL - IMAGE MESSAGING STYLES
   ============================================

   Created: 2025-12-07
   E2EE Image Messaging Component Styles
   Mobile-first, responsive, dark-theme compatible
   ============================================ */

/* ===================================
   1. ATTACH IMAGE BUTTON
   =================================== */

.attach-image-btn {
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  padding: 0;
  flex-shrink: 0;
}

.attach-image-btn:hover {
  background: var(--bg-hover);
  transform: scale(1.05);
}

.attach-image-btn:active {
  transform: scale(0.95);
}

.attach-image-btn svg {
  width: 24px;
  height: 24px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.attach-image-btn:hover svg {
  color: var(--color-primary);
}

.attach-image-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Hidden file input */
#image-upload-input {
  display: none;
}

/* ===================================
   2. MESSAGE IMAGE (in chat)
   =================================== */

/* Image container (div wrapping img) */
.message-image {
  max-width: 250px;
  max-height: 350px;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  display: block;
  position: relative;
}

.message-image:active {
  opacity: 0.9;
}

/* Actual image inside container */
.message-image img,
.message-image .image-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}

/* Message bubble with image - remove padding for clean look */
.message.has-image {
  padding: 0;
  background: transparent !important;
  box-shadow: none !important;
}

/* Metadata (time + status) for image messages - minimal spacing */
.message.has-image .message-meta {
  margin-top: 4px;
  padding: 0;
}

.message.has-image .message-time {
  margin-top: 0;
}

.message.sent .message-image-container,
.message.received .message-image-container {
  max-width: 100%;
}

/* ===================================
   3. IMAGE PLACEHOLDER (loading state)
   =================================== */

.image-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-input);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  backdrop-filter: blur(10px);
}

.image-placeholder.hidden {
  display: none;
}

/* ===================================
   4. LOADING SPINNER
   =================================== */

.image-loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--bg-hover);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--bg-hover);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Pulsing animation for loading states */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.loading-pulse {
  animation: pulse 1.5s ease-in-out infinite;
}

/* ===================================
   5. IMAGE ERROR STATE
   =================================== */

.image-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  background: var(--bg-input);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  text-align: center;
  min-height: 150px;
}

.image-error-icon {
  font-size: var(--font-7xl);
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

.image-error-text {
  font-size: var(--font-md);
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.4;
}

.image-error-retry {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-sm) var(--spacing-xl);
  background: var(--color-primary);
  color: var(--text-white);
  border: none;
  border-radius: var(--radius-button);
  cursor: pointer;
  font-size: var(--font-md);
  transition: all var(--transition-fast);
}

.image-error-retry:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.image-error-retry:active {
  transform: translateY(0);
}

/* ===================================
   6. IMAGE PREVIEW MODAL (before sending)
   =================================== */

.image-preview-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.image-preview-modal.active {
  opacity: 1;
  pointer-events: all;
}

.image-preview-modal.hidden {
  display: none;
}

.preview-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 90vw;
  max-height: 90vh;
}

.preview-image {
  max-width: 90vw;
  max-height: 70vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  margin-bottom: var(--spacing-2xl);
}

.preview-actions {
  display: flex;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.preview-btn {
  padding: var(--spacing-lg) var(--spacing-3xl);
  font-size: var(--font-xl);
  font-weight: var(--font-medium);
  border: none;
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 120px;
  box-shadow: var(--shadow-md);
}

.preview-btn-cancel {
  background: var(--bg-button-secondary);
  color: var(--text-primary);
}

.preview-btn-cancel:hover {
  background: var(--bg-button-secondary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.preview-btn-send {
  background: var(--color-primary);
  color: var(--text-white);
}

.preview-btn-send:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.preview-btn:active {
  transform: translateY(0);
}

.preview-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ===================================
   7. UPLOAD PROGRESS
   =================================== */

.upload-progress {
  position: relative;
  width: 100%;
  max-width: 300px;
  height: 8px;
  background: var(--bg-hover);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin: var(--spacing-lg) 0;
}

.upload-progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: width var(--transition-fast);
  box-shadow: 0 0 10px var(--color-primary-shadow);
}

.upload-progress-text {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: var(--spacing-sm);
  font-size: var(--font-sm);
  color: var(--text-secondary);
  white-space: nowrap;
}

/* Progress in message bubble */
.message .upload-progress {
  margin: var(--spacing-sm) 0;
}

/* ===================================
   8. IMAGE VIEWER (full-screen viewer)
   =================================== */

.image-viewer {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.98);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.image-viewer.active,
.image-viewer:not(.hidden) {
  opacity: 1;
  pointer-events: all;
}

.image-viewer.hidden {
  display: none;
}

/* Close button */
.viewer-close {
  position: absolute;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 44px;
  height: 44px;
  background: var(--bg-white-20);
  border: none;
  border-radius: var(--radius-full);
  color: var(--text-white);
  font-size: var(--font-4xl);
  font-weight: var(--font-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 10;
  backdrop-filter: blur(10px);
}

.viewer-close:hover {
  background: var(--bg-white-30);
  transform: scale(1.1);
}

.viewer-close:active {
  transform: scale(0.95);
}

/* Image container */
.viewer-image-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: var(--spacing-4xl) var(--spacing-xl);
}

.viewer-image-container img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform var(--transition-normal);
  cursor: zoom-in;
}

.viewer-image-container img.zoomed {
  cursor: zoom-out;
}

/* Control bar */
.viewer-controls {
  position: absolute;
  bottom: var(--spacing-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  background: var(--bg-white-20);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-button);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-xl);
}

.viewer-controls button {
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  color: var(--text-white);
  font-size: var(--font-3xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.viewer-controls button:hover {
  background: var(--bg-white-20);
  transform: scale(1.1);
}

.viewer-controls button:active {
  transform: scale(0.95);
}

.viewer-controls button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

#zoom-level {
  min-width: 60px;
  text-align: center;
  color: var(--text-white);
  font-size: var(--font-md);
  font-weight: var(--font-medium);
}

/* Loading overlay in viewer */
.viewer-loading {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  z-index: 5;
}

.viewer-loading.hidden {
  display: none;
}

.viewer-loading span {
  color: var(--text-white);
  font-size: var(--font-xl);
  font-weight: var(--font-medium);
}

/* ===================================
   9. DRAG & DROP
   =================================== */

.chat-messages.drag-over {
  border: 3px dashed var(--color-primary);
  background: var(--color-primary-light);
  position: relative;
}

.chat-messages.drag-over::after {
  content: 'Отпустите для отправки изображения';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--font-2xl);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  background: var(--bg-white-95);
  padding: var(--spacing-xl) var(--spacing-3xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  pointer-events: none;
  z-index: 10;
}

.chat-input-area.drag-over {
  border-top: 3px dashed var(--color-primary);
  background: var(--color-primary-light);
}

/* ===================================
   10. IMAGE THUMBNAIL (in message bubble)
   =================================== */

.message-bubble {
  position: relative;
}

.message-bubble.has-image {
  padding: var(--spacing-xs);
}

.message-bubble.has-image .message-text {
  margin-top: var(--spacing-sm);
  padding: 0 var(--spacing-sm);
}

/* Timestamp positioning for image messages - minimal spacing */
.message.has-image .message-time {
  position: relative;
  margin-top: 0;
}

/* ===================================
   11. ENCRYPTION INDICATORS
   =================================== */

.image-encrypted-badge {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: var(--bg-white-50);
  backdrop-filter: blur(10px);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-xs);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  box-shadow: var(--shadow-sm);
}

.image-encrypted-badge::before {
  content: '🔒';
  font-size: var(--font-sm);
}

/* ===================================
   12. IMAGE SIZE BADGE
   =================================== */

.image-size-badge {
  position: absolute;
  bottom: var(--spacing-sm);
  left: var(--spacing-sm);
  background: var(--bg-white-50);
  backdrop-filter: blur(10px);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-xs);
  color: var(--text-primary);
  font-weight: var(--font-medium);
}

/* ===================================
   13. ACCESSIBILITY
   =================================== */

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible styles */
.attach-image-btn:focus-visible,
.preview-btn:focus-visible,
.viewer-close:focus-visible,
.viewer-controls button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===================================
   14. ANIMATIONS
   =================================== */

/* Fade in animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.fade-in {
  animation: fadeIn var(--transition-normal);
}

/* Slide up animation */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-up {
  animation: slideUp var(--transition-normal);
}

/* Shake animation for errors */
@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(5px);
  }
}

.shake {
  animation: shake 0.5s;
}

/* ===================================
   15. RESPONSIVE DESIGN
   =================================== */

/* Tablets and smaller */
@media (max-width: 768px) {
  .message-image {
    max-width: 220px;
    max-height: 300px;
  }

  .preview-image {
    max-width: 85vw;
    max-height: 65vh;
  }

  .viewer-controls {
    bottom: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-lg);
    gap: var(--spacing-md);
  }

  .viewer-controls button {
    width: 36px;
    height: 36px;
    font-size: var(--font-2xl);
  }

  #zoom-level {
    font-size: var(--font-base);
    min-width: 50px;
  }
}

/* Mobile phones */
@media (max-width: 480px) {
  .attach-image-btn {
    width: 40px;
    height: 40px;
  }

  .attach-image-btn svg {
    width: 20px;
    height: 20px;
  }

  .message-image {
    max-width: 180px;
    max-height: 250px;
  }

  .preview-content {
    padding: var(--spacing-md);
  }

  .preview-image {
    max-width: 90vw;
    max-height: 60vh;
    margin-bottom: var(--spacing-lg);
  }

  .preview-actions {
    flex-direction: column;
    width: 100%;
    gap: var(--spacing-md);
  }

  .preview-btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-lg);
    min-width: unset;
  }

  .viewer-close {
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    font-size: var(--font-3xl);
  }

  .viewer-image-container {
    padding: var(--spacing-2xl) var(--spacing-sm);
  }

  .viewer-controls {
    bottom: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    gap: var(--spacing-sm);
  }

  .viewer-controls button {
    width: 32px;
    height: 32px;
    font-size: var(--font-xl);
  }

  #zoom-level {
    font-size: var(--font-sm);
    min-width: 45px;
  }

  .chat-messages.drag-over::after {
    font-size: var(--font-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
  }

  .image-error {
    padding: var(--spacing-lg);
    min-height: 120px;
  }

  .image-error-icon {
    font-size: var(--font-5xl);
  }

  .image-error-text {
    font-size: var(--font-base);
  }

  .upload-progress {
    max-width: 250px;
  }
}

/* Extra small screens */
@media (max-width: 360px) {
  .message-image {
    max-width: 150px;
    max-height: 200px;
  }

  .preview-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-md);
  }

  .viewer-controls {
    gap: var(--spacing-xs);
  }

  .viewer-controls button {
    width: 28px;
    height: 28px;
    font-size: var(--font-lg);
  }
}

/* ===================================
   16. DARK MODE COMPATIBILITY
   =================================== */

@media (prefers-color-scheme: dark) {
  .image-placeholder {
    background: rgba(30, 30, 30, 0.9);
  }

  .image-error {
    background: rgba(30, 30, 30, 0.9);
  }

  .preview-btn-cancel {
    background: rgba(60, 60, 60, 0.9);
    color: #f0f0f0;
  }

  .preview-btn-cancel:hover {
    background: rgba(80, 80, 80, 0.9);
  }

  .upload-progress {
    background: rgba(60, 60, 60, 0.5);
  }

  .chat-messages.drag-over::after {
    background: rgba(30, 30, 30, 0.95);
  }
}

/* ===================================
   17. PRINT STYLES
   =================================== */

@media print {
  .attach-image-btn,
  .viewer-controls,
  .viewer-close,
  .upload-progress {
    display: none !important;
  }

  .message-image {
    max-width: 100%;
    page-break-inside: avoid;
  }

  .image-viewer {
    position: relative;
    background: white;
  }
}

/* ===================================
   18. REDUCED MOTION
   =================================== */

@media (prefers-reduced-motion: reduce) {
  .attach-image-btn,
  .message-image,
  .preview-btn,
  .viewer-close,
  .viewer-controls button {
    transition: none;
  }

  .image-loading-spinner,
  .spinner {
    animation: none;
    border: 3px solid var(--color-primary);
  }

  .fade-in,
  .slide-up,
  .shake {
    animation: none;
  }

  .image-preview-modal,
  .image-viewer {
    transition: none;
  }
}

/* ===================================
   19. HIGH CONTRAST MODE
   =================================== */

@media (prefers-contrast: high) {
  .attach-image-btn {
    border: 2px solid currentColor;
  }

  .message-image {
    border: 2px solid currentColor;
  }

  .preview-btn {
    border: 2px solid currentColor;
  }

  .viewer-close,
  .viewer-controls button {
    border: 2px solid var(--text-white);
  }
}

/* ===================================
   20. UTILITY CLASSES
   =================================== */

.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden;
}

.opacity-0 {
  opacity: 0;
}

.opacity-50 {
  opacity: 0.5;
}

.opacity-100 {
  opacity: 1;
}

.pointer-events-none {
  pointer-events: none;
}

.cursor-pointer {
  cursor: pointer;
}

.cursor-not-allowed {
  cursor: not-allowed;
}

/* End of image-messaging.css */